144 



perigyuous insertion, in the parietal placentas, in the smalluess of the seeds, 

 in the dehiscence of the fruit and in the shape of the leaves ; of the Cunoni- 

 acese and the Quiinacese^, in external features and in the densely hairy 

 seeds ; of the Hamatnelidacese and Dipterocarpaceae 75 in the presence of a ring 

 of secretory - canals in the medulla - crown ; and finally, of the Rosaceee and the 

 Eucryphiacera . Moreover, some affinity between the Resales and the 

 Geraniales is to be found in a few analogous features of the Pittosporacese^ 

 of the former series on the one side, and of the Vcchysiacese, Polygalaceae, and 

 Trernandracefe of the latter series on the other (BENTH.-HoOKER) ; and also 

 in those of the Hamamehdaceas and Simarubacese 55 in the presence of a ring 

 of secretory-canals in the medulla - crown. To the Myrtiflorae, its alliance is, 

 in some measure, to be seen in a few similarities of the Rosacese 15 * on the one 

 hand, and of the Combretacere, Myrtacere and Thymelteaceae on the other. 

 The relation between the Resales and the Sapindales is rather slight, as can 

 be seen from some agreement of the Saxifragacere and the Melianthace8e 7) and 

 from that of the Pittosporacee s) and Celas tracer in their floral diagram. To 

 the Rhamnales, the Resales are on some degree related, as is shown in the 

 Pittosporacese 9) and Rhainnacere (R. BROWN) ; and also to the Urnbellinorffi' 

 in some conformities of the PittosporaceEe and Araliacese, and of the former 

 family and the Unibelliferas, in the peculiar distribution of the resin-ducts in 

 the roots, in the formation of lateral roots and in other anatomical characters 

 (VAN TIEGHEM)' O) . Lastly, they are somewhat related to the Rubiales in the 

 slight agreement of the Saxifragacese and Adoxacese. 115 As has been pointed 

 out, the relations of the Resales in this point or that extend from the 

 Santalales far up to the Rubiales. Their natural position is, therefore, dynamic. 

 Next to the Resales in his syllabus, ENGLER places the Pandales 125 . As 

 to the relations of the latter series, we are as yet ignorant. 



1) 1. c. III. 6, p. 166. 2) 1. c. III. 6, p. 252. 



3) 1. c. IIL 6, p. 131. 4) 1, c. III. 2, a, p. 108. 



5) Nat. Pfl.-fam. ILL 5, p. 203 and IH 6, p. 253. 



6) 1. c. IIL 3, p. 10. 7) 1. c. III. 5, p. 378. 



8) 1. c. III.- 2, a, p. 108. 9), 10) Nat. Pfl.-fam. III. 2, a, p. 108. 



11) 1. c. IV.-4, p. 171. 12) ENGLER, A. Syllabus 1. c. p. 223. 



